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Delete lines in a text file fast

Terminal - Delete lines in a text file fast
2013-04-10 10:34:39
User: techie
Delete lines in a text file fast

If you want to delete lines fast then all you need to do is vi/vim a text file, type in the amount of lines you want to delete (in my example I wanted to delete 10056 lines) followed by dd (no spaces). There will be no output so becareful with what number you type.


There are 5 alternatives - vote for the best!

Terminal - Alternatives

Know a better way?

If you can do better, submit your command here.

What others think

This is very-very basic vi/vim knowledge - without you will propably fail to use the editor. Therefore IMHO highly redundant to mention it here. Sorry ..

Comment by Paule 137 weeks and 4 days ago

I'm inclined to agree with Paule, also I'm having difficultly framing a situation in which I want to delete 10056 lines without some idea of what that range might be, why 10056 lines, other than the fact that it a big(ish) number and therefore provides some context for "fast"? Anyhow, for such a task there is no need to open the file:

sed -i '1,10056d' file.txt

The question of range aside, should I remove such a number of lines I'd probably want to keep the original and make a revision:

sed '100,700d' revision1.txt > revision2.txt

Comment by khayyam 137 weeks and 4 days ago

I had a very large file with many different configurations in but #'d out.. I used vim and got to the line that I needed the file to start at which was 1057 so I went back to the top of the file and used 1057dd.. When I posted I used an extra 0 in the middle. It would have been a mess if I did that in the command line lol

Comment by techie 132 weeks and 4 days ago

dG in vim is better, I think...

Comment by Zulu 132 weeks and 4 days ago

Your point of view

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